Nostalgy: keyboard productivity extension for Thunderbird

Nostalgy is an extension for
Mozilla
Thunderbird whose purpose is to save time by
doing more operations with the keyboard. If you want to use
Thunderbird without sacrificing the productivity you had
with good old mutt/pine, this extension is for you!

There used to be a mailing list, but it is now disabled. You can always
contact the author directly or post an Issue or Pull Request on Github.
Acrhives of the list are available through a google group mirror.